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ith water.

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Interesting. How much of the US is north of the Arctic circle? There's less sunlight in winter, but a good deal more than none. And most renewable ene rgy proponents are aware that wind power is cheaper than solar power at the moment, and it is available in winter.

Windpower doesn't scale down to house size, and it pays to have a grid that spans a couple of weather systems if you are going to rely on it.

That would be a system exploiting the 180 degree - six month - phase lag be tween the dirt 45cm below the surface and the snow on the ground. The tempe rature differential is small, but it's reliable. Sadly, the energy density is also small, so any practical version would need to be huge - more estate sized than house sized.

James Arthur's preferred live-style - living very cheaply in a huge un-heat ed house - might fit that.

Lemme see, it appears that the energy needed to push the liquids is being ignored in the "evaluation" of the battery's efficiency.

Flywheels MUST get their energy somewhere...

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_battery/

rage

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the waste products overboard" is what has given us anthropogenic global wa rming.

albeit a much clever version than anybody else's) but it's a real problem and not buring gasoline in cars is going to be part of the solution.

range between refills?

o recognise that burning fossil carbon for fuel is a bad idea, we may have got flywheel storage working, so working out the details of what we might d o today is something of a waste of time.

That is the implication of flywheel "storage", but you do need to have thes e things pointed out to you. The thread is about energy storage in "home ba tteries" but our slower posters do need frequent reminders.

And they stall under load real fast. Think of how fast a capacitor empties. That is why we use batteries not capacitors in devices.

A flywheel definitely falls in on the capacitor side, and has no potential to take a load long distances without constant kicks in the ass. Not like a battery at all.

BTW the title of this thread *really* "don't sound right".

Folks get in trouble for that s*it.

But close enough that people have built fly-wheel operated buses and trains. Strictly short range stuff, but the energy density is better than a battery.

You mean the alternative reading as "domestic violence"?

And so they should. On the other hand, I hadn't noticed the ambiguity until you pointed it out. In group like sci.electronics.design a battery is some that stores energy. Your experience may have sensitised you to other interpretations.

We have them, called "dams."

I don't imagine it's all that much. I didn't see any charging efficiency info.

Far more pertinent immediately are the vanadium-iron unit's horrible 25 watt-hours/liter, and the zinc-polyiodide unit's dendrites.

Cheers, James Arthur

Hmmm, don't sell your Exxon stock just yet.

Those don't work without solar power, bringing us full-circle.

Cheers, James

So it is somehow a "benefit" to be "stupid" and IGNORE where these storage devices GET their energy?

Yes...maybe the battery should get out of the house...

What kind of salt?

rote:

ge_battery/

to recognise that burning fossil carbon for fuel is a bad idea, we may hav e got flywheel storage working, so working out the details of what we might do today is something of a waste of time.

these things pointed out to you. The thread is about energy storage in "hom e batteries" but our slower posters do need frequent reminders.

The thread started with a John Larkin reposting an article from the UK Regi ster, where Elton Musk boasted about home storage battery about which was "the company was in the process of talking to a number of utility companies ".

Somebody with a slightly better grip of reality than you exhibit would be a ware that utility companies are having an increasing problem coping with po wer inputs from solar panels and wind farms, which don't tend to be timed t o match the peaks in domestic power consumption.

So the rest of us aren't "ignoring" the question of where these storage dev ices get their energy - we understand that the utilities have a problem tha t this kind of device could solve. Since you seem to be a thick as a brick, you've missed this.

Bill Sloman the slowtard tries to make more insults upon folks in Usenet.

Nice absolutely pathetic life you have there, Slotard.

You are also an absolute idiot about how sex works as well.

Not all the folks. Just the various manifestations of AlwaysWrong

What would you know about? You work your imagination hard, and don't feed it with much in the way of facts, and make loads of absurd - and frequently hilarious, as here - mistakes in consequence.

You'd like to think so. Sadly, you are the absolute idiot who thinks he can get away absurd claims, unsupported by anything that even looks like evidence. You could be krw posting under a nym but you aren't right wing enough.

Not so; utilities companies have made serious investigations into use of pumped water (refill dams) for storage as one of the many possible methods. Flywheels are not too good for storage of multi-megawatt power...

rage_battery/

ad to recognise that burning fossil carbon for fuel is a bad idea, we may h ave got flywheel storage working, so working out the details of what we mig ht do today is something of a waste of time.

e these things pointed out to you. The thread is about energy storage in "h ome batteries" but our slower posters do need frequent reminders.

Register, where Elton Musk boasted about home storage battery about which was "the company was in the process of talking to a number of utility compa nies".

be aware that utility companies are having an increasing problem coping wit h power inputs from solar panels and wind farms, which don't tend to be tim ed to match the peaks in domestic power consumption.

devices get their energy - we understand that the utilities have a problem that this kind of device could solve. Since you seem to be a thick as a br ick, you've missed this.

Construction started in 1974, and it's been working since 1984. A fairly se rious "investigation". Your quick google search was a bit too quick. I've h ad the advantage of driving past Dinorwig, not that there's much to see.

They are fine for multi-megawatt power - one was used a short term 500 Mega wattpower source at the Australian National University from 1962 to 1986

At first it used liquid metal brushes - a sodium and potassium alloy - but after this injured the guy who had to keep it clean, they went over to carb on brushes.

As energy storage devices, they do tend to be on the small side for utility applications - one in every house-hold might work.

On Sunday, March 1, 2015 at 11:59:19 AM UTC-8, Robert Baer wrote: ....

Single megawatt ones are available off the shelf: